1131033251 has 2 divisors, whose sum is σ = 1131033252. Its totient is φ = 1131033250.

The previous prime is 1131033227. The next prime is 1131033259. The reversal of 1131033251 is 1523301311.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1131033251 - 2⁶ = 1131033187 is a prime.

It is not a weakly prime, because it can be changed into another prime (1131033259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565516625 + 565516626.

It is an arithmetic number, because the mean of its divisors is an integer number (565516626).

Almost surely, 2^1131033251 is an apocalyptic number.

1131033251 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131033251 is an equidigital number, since it uses as much as digits as its factorization.

1131033251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 270, while the sum is 20.

The square root of 1131033251 is about 33630.8377980686. The cubic root of 1131033251 is about 1041.8978078587.

Adding to 1131033251 its reverse (1523301311), we get a palindrome (2654334562).

The spelling of 1131033251 in words is "one billion, one hundred thirty-one million, thirty-three thousand, two hundred fifty-one".